骨盆及相关结构.ppt

《骨盆及相关结构.ppt》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、PELVISandRELATEDSTRUCTURESPELVISComponents:HipBonesSacrumCoccyxLandmarks:a)PelvicInletorSuperiorPelvicApertureBoundaries:SacralPromontoryPectinealLineArcuateLineSymphysisPubisb)PelvicOutletBoundaries:CoccyxIschiopubicRamiSymphysisPubisIschialTuberositiesSacrotuberousLigamentsPELVI

2、SDivisions:a)GreaterPelvis(FalsePelvis)-expandedareaabovepelvicinlet-lowermostpartoftheabdominalcavityb)LesserPelvis(TruePelvis)-narrowedportionbelowpelvicinlet-closedbyPELVICDIAPHRAGMPELVISMeasurements:a)TrueConjugateDiameter(ObstetricConjugateDiameter)-anteroposteriormeasurement

3、-superiorborderofsymphysispubis&sacralpromontoryb)ObliqueDiameter-iliopubiceminence&oppositesacroliacjointPELVISMeasurements:c)TransverseDiameter1)PelvicInlet–between2arcuatelines2)PelvicOutlet–between2ischialspines(smallestdiameter)d)DiagonalConjugateDiameter-lowerborderofsymphys

4、ispubis&sacralpromontory-2cmsmorethanthetrueconjugatediameter-estimatedmanuallyduringinternalvaginalexaminationPELVICDIAPHRAGMFunction:MainsupportofthepelvicorgansStructure:1.LevatorAniMuscle-maintainsintegrityofpelvicfloor-maybedamagedduringchildbirth-alsomaintainsurinarycontinen

5、ceComponents:a)PubococcygeusMuscleAnteriorComponent-surroundsbaseofprostateorlowerendofvaginaPosteriorComponent-fuseswithoppositesideatanococcygealligamentInferiorComponent(PuborectalisMuscle)–slingsaroundanorectaljunctionPELVICDIAPHRAGMComponents:a)PubococcygeusMuscleAnteriorComp

6、onent-surroundsbaseofprostateorlowerendofvaginaPosteriorComponent-fuseswithoppositesideatanococcygealligamentInferiorComponent(PuborectalisMuscle)–slingsaroundanorectaljunctionb)IliococcygeusMuscle2.IschiococcygeusMusclePELVICFASCIACharacteristics:-linesthefloor&walssofthepelvicca

7、vity-continuouswiththetransversalisfasciaoftheabdomenCondensations:1.PuboprostaticLigament(Males)PubocervicalLigament(Females)2.TransverseCervicalLigamentorCardinalLigament3.SacrogenitalLigament(Males)UterosacralLigament(Females)PELVICORGANSSIGMOIDCOLON-longest&narrowestsegmentoft

8、helargeintestines-extendsfromleve